Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5239890 | Shrunk teflon helix cover | Frank F. Adelman | 1993-08-31 |
| 5105678 | Balanced dual ball bearing control | Frank F. Adelman, Rodney L. Alderfer | 1992-04-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5239890 | Shrunk teflon helix cover | Frank F. Adelman | 1993-08-31 |
| 5105678 | Balanced dual ball bearing control | Frank F. Adelman, Rodney L. Alderfer | 1992-04-21 |